Explain any one method of crop production which ensures
high yield.
1.Why are manure and fertilizers used in fields?
2.What are the advantages of inter-cropping and crop rotation?
3.What is genetic manipulation?
4.How is it useful in agricultural
practices?
Answers
Answer:
1)Manures and fertilizers are used in fields to supply plant nutrients to the soil which increases soil fertility in order to ensure good vegetative growth that results in high crop production.
2) Inter-cropping helps in preventing pests and diseases to spread throughout the field. It also increases soil fertility, whereas crop rotation prevents soil depletion, increases soil fertility, and reduces soil erosion. Both these methods reduce the need for fertilizer
Explanation:
3 AND 4)When a gene with a desirable character is introduced into a plant or animal, it is called genetic modification or genetic manipulation. Genetic modification helps in producing better varieties of plants and animals. BT cotton is a good example of genetically modified crop. Here, BT stands for Bacillus thuringiensis which is a bacteria that produces various toxins against different types of pests. Introducing the gene from BT equips cotton with an ability to ward off attacks from different types of insect pests. It helps in improving the yield of cotton.
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